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Finding the Third Proportional to 14,181 and 20,879

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Solution

The third proportional to 14,181 and 20,879 is: 30,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181 : 20,879 = 20,879 : x
  2. Step 2: Convert to fraction form
    14,181/20,879 = 20,879/x
  3. Step 3: Cross multiply
    14,181x = 20,879 × 20,879
  4. Step 4: Simplify right side
    14,181x = 435,932,641
  5. Step 5: Solve for x
    x = 435,932,641/14,181
  6. Step 6: Final answer
    x = 30,740.61

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.